\\[-1.8ex] Soil Heterogeneity & $-$0.032$^{*}$ & $-$0.034$^{*}$ & $-$0.049$^{***}$ & $-$0.049$^{***}$ \\ 
  & (0.019) & (0.019) & (0.019) & (0.019) \\ 
\\[-1.8ex]
Dependent Variable Mean & 0.32 & 0.32 & 0.32 & 0.32 \\ 
Dependent Variable SD & 0.12 & 0.12 & 0.11 & 0.11 \\ 
Observations & 23,532 & 23,532 & 23,532 & 23,532 \\ 
R$^{2}$ & 0.677 & 0.671 & 0.704 & 0.704 \\ 
